freebsd-dev/bin/sh/arith_yacc.h
Jilles Tjoelker aac5464b61 sh: Restore $((x)) error checking after fix for $((-9223372036854775808))
SVN r342880 was designed to fix $((-9223372036854775808)) and things like
$((0x8000000000000000)) but also broke error detection for values of
variables without dollar sign ($((x))).

For compatibility, overflow in plain literals continues to be ignored and
the value is clamped to the boundary (except 9223372036854775808 which is
changed to -9223372036854775808).

Reviewed by:	se (although he would like error checking to be removed)
MFC after:	2 weeks
X-MFC-with:	r342880
Differential Revision:	https://reviews.freebsd.org/D18926
2019-02-10 22:23:05 +00:00

95 lines
2.9 KiB
C

/*-
* Copyright (c) 1993
* The Regents of the University of California. All rights reserved.
* Copyright (c) 2007
* Herbert Xu <herbert@gondor.apana.org.au>. All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* Kenneth Almquist.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD$
*/
#define ARITH_ASS 1
#define ARITH_OR 2
#define ARITH_AND 3
#define ARITH_BAD 4
#define ARITH_NUM 5
#define ARITH_VAR 6
#define ARITH_NOT 7
#define ARITH_BINOP_MIN 8
#define ARITH_LE 8
#define ARITH_GE 9
#define ARITH_LT 10
#define ARITH_GT 11
#define ARITH_EQ 12
#define ARITH_REM 13
#define ARITH_BAND 14
#define ARITH_LSHIFT 15
#define ARITH_RSHIFT 16
#define ARITH_MUL 17
#define ARITH_ADD 18
#define ARITH_BOR 19
#define ARITH_SUB 20
#define ARITH_BXOR 21
#define ARITH_DIV 22
#define ARITH_NE 23
#define ARITH_BINOP_MAX 24
#define ARITH_ASS_MIN 24
#define ARITH_REMASS 24
#define ARITH_BANDASS 25
#define ARITH_LSHIFTASS 26
#define ARITH_RSHIFTASS 27
#define ARITH_MULASS 28
#define ARITH_ADDASS 29
#define ARITH_BORASS 30
#define ARITH_SUBASS 31
#define ARITH_BXORASS 32
#define ARITH_DIVASS 33
#define ARITH_ASS_MAX 34
#define ARITH_LPAREN 34
#define ARITH_RPAREN 35
#define ARITH_BNOT 36
#define ARITH_QMARK 37
#define ARITH_COLON 38
extern const char *arith_buf;
union yystype {
arith_t val;
char *name;
};
extern union yystype yylval;
arith_t strtoarith_t(const char *restrict nptr, char **restrict endptr);
int yylex(void);